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Finding the Fourth Proportional to 362,415.30, 543,622.95 and 212,727.30

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Solution

The fourth proportional to 362,415.30, 543,622.95 and 212,727.30 is: 319,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,415.30 : 543,622.95 = 212,727.30 : x
  2. Step 2: Convert to fraction form
    362,415.30/543,622.95 = 212,727.30/x
  3. Step 3: Cross multiply
    362,415.30x = 543,622.95 × 212,727.30
  4. Step 4: Simplify right side
    362,415.30x = 115,643,442,371.54
  5. Step 5: Solve for x
    x = 115,643,442,371.54/362,415.30
  6. Step 6: Final answer
    x = 319,090.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.